Perhaps you should try some spelling variations:
opec communication » open communication, optic communication, ec communication
der developpements » des developpements, deux developpements, de developpement
developpements en » developpement en, developpement et, developpements de
communication 3 » communication _, communication a
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
des opec » der opec, des opnv
3 der » _ der, 2 der

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: ideologie der variation _ des opec communication 3 der developpements en afrique.*.